20147280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{661}}^1$

素因数の和:804

約数の個数: 80

約数和(自身を含む): 63043584

約数和(自身を除く): 42896304

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 127, 240, 254, 381, 508, 635, 661, 762, 1016, 1270, 1322, 1524, 1905, 1983, 2032, 2540, 2644, 3048, 3305, 3810, 3966, 5080, 5288, 6096, 6610, 7620, 7932, 9915, 10160, 10576, 13220, 15240, 15864, 19830, 26440, 30480, 31728, 39660, 52880, 79320, 83947, 158640, 167894, 251841, 335788, 419735, 503682, 671576, 839470, 1007364, 1259205, 1343152, 1678940, 2014728, 2518410, 3357880, 4029456, 5036820, 6715760, 10073640, 20147280]

約数ペア:

[(1, 20147280), (2, 10073640), (3, 6715760), (4, 5036820), (5, 4029456), (6, 3357880), (8, 2518410), (10, 2014728), (12, 1678940), (15, 1343152), (16, 1259205), (20, 1007364), (24, 839470), (30, 671576), (40, 503682), (48, 419735), (60, 335788), (80, 251841), (120, 167894), (127, 158640), (240, 83947), (254, 79320), (381, 52880), (508, 39660), (635, 31728), (661, 30480), (762, 26440), (1016, 19830), (1270, 15864), (1322, 15240), (1524, 13220), (1905, 10576), (1983, 10160), (2032, 9915), (2540, 7932), (2644, 7620), (3048, 6610), (3305, 6096), (3810, 5288), (3966, 5080)]